NameError: name '__main__' is not defined

maya, program-entry-point, python

Solution

Your problem was a few things, I've only included a few basic sections of the code as the rest wasn't needed.

Problem one was `__name__`, if this were quoted, we wouldn't have a problem, seeing as it's just a name and not anything special, I'm just going to rename this to `name`.

Problem two was duplicate names on panels/panelTypes. IE:

pm.scriptedPanelType(self.__name__, u = True)
pm.scriptedPanel( self.__name__, edit=True,  label=self._title )

Maya didn't like that both the panelType and the panel had the same names.

So:

import maya.cmds as cmds
import pymel.core as pm
import maya.mel as mel

class PanelWindow( object ):
    def __init__(self, name, title):

        self._name = name
        self._title = title
        self.panelTypeName = self._name + "Type"



        if not pm.scriptedPanelType(self.panelTypeName, query=True, exists=True):
            pm.scriptedPanelType(self.panelTypeName, unique=True)

        if not pm.scriptedPanel(self._title, query=True, exists=True):
            ## Only allows one instance
            pm.scriptedPanel(self._title, menuBarVisible=1, unParent=True, type=self.panelTypeName, label=self._title )

    def _addCallback(self):
        """Create UI and parent any editors."""
        print 'ADD CALLBACK'        


    def show( self ):  
        mel.eval('tearOffPanel "%s" "%s" true;' % (self._title, self._name) )  



PanelWindow('lightControlType1', 'lightControl').show()

Problem

I have been reading here, but I couldnt find any solution online to solve my problem..I think I have the indentation right, but I still get the Name Error..Can someone help me out please. This script should run a new panel in maya, which works kind of, but the error is really annoying. ``` class PanelWindow( object ): def __init__( self, name, title, namespace=__name__ ): self.__name__ = name self._title = title self.instance = str(namespace) + '.' + self.__name__ if not pm.scriptedPanelType(self.__name__, q = True, ex = True): pm.scriptedPanelType(self.__name__, u = True) jobCmd = 'python(\\\"%s._setup()\\\")' % self.instance job = "scriptJob -replacePrevious -parent \"%s\" -event \"SceneOpened\" \"%s\";" % ( self.__name__, jobCmd ) mel.eval(job) pm.scriptedPanelType( self.__name__, e = True, unique=True, createCallback = 'python("%s._createCallback()")' % self.instance, initCallback = 'python("%s._initCallback()" )' % self.instance, addCallback = 'python("%s._addCallback()" )' % self.instance, removeCallback = 'python("%s._removeCallback()")' % self.instance, deleteCallback = 'python("%s._deleteCallback()")' % self.instance, saveStateCallback = 'python("%s._deleteCallback()")' % self.instance ) def _setup(self): """Command to be call for new scene""" panelName = pm.sceneUIReplacement( getNextScriptedPanel=(self.__name__, self._title) ) if panelName == '': try: panelName = pm.scriptedPanel( mbv=1, unParent=True, type=self.__name__, label=self._title ) except: pass else: try: label = panel( self.__name__, query=True, label=True ) pm.scriptedPanel( self.__name__, edit=True, label=self._title ) except: pass def _addCallback(self): """Create UI and parent any editors.""" print 'ADD CALLBACK' def show( self ): mel.eval('tearOffPanel "%s" %s true;' % (self._title, self.__name__) ) global test test = PanelWindow('myName', 'Light') test.show() # NameError: name '__main__' is not defined # # Error: line 1: name '__main__' is not defined # Traceback (most recent call last): # File "<maya console>", line 1, in <module> # NameError: name '__main__' is not defined # ```

Original source